<meta charset="utf-8">
(#) URI relative filter group invalid

!!! ERROR: URI relative filter group invalid
   This is an error.

Id
:   `AppLinkUriRelativeFilterGroupError`
Summary
:   URI relative filter group invalid
Severity
:   Error
Category
:   Correctness
Platform
:   Android
Vendor
:   Android Open Source Project
Feedback
:   https://issuetracker.google.com/issues/new?component=192708
Since
:   8.9.0-alpha05 (December 2024)
Affects
:   Manifest files
Editing
:   This check runs on the fly in the IDE editor
See
:   https://developer.android.com/guide/topics/manifest/uri-relative-filter-group-element?utm_source=lint
Implementation
:   [Source Code](https://cs.android.com/android-studio/platform/tools/base/+/mirror-goog-studio-main:lint/libs/lint-checks/src/main/java/com/android/tools/lint/checks/AppLinksValidDetector.kt)
Tests
:   [Source Code](https://cs.android.com/android-studio/platform/tools/base/+/mirror-goog-studio-main:lint/libs/lint-tests/src/test/java/com/android/tools/lint/checks/AppLinksValidDetectorTest.kt)

Ensure that your URI relative filter group is correctly configured.

!!! Tip
   This lint check has an associated quickfix available in the IDE.

(##) Example

Here is an example of lint warnings produced by this check:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~text
AndroidManifest.xml:29:Error: MIME types prevent Android App Links from
matching [AppLinkUriRelativeFilterGroupError]
    &lt;data android:mimeType="application/json" /&gt;
    --------------------------------------------
AndroidManifest.xml:40:Error: MIME types prevent Android App Links from
matching [AppLinkUriRelativeFilterGroupError]
    &lt;data android:host="example.com" android:mimeType="application/json" android:pathPrefix="/gizmos" /&gt;
    ----------------------------------------------------------------------------------------------------
AndroidManifest.xml:51:Error: MIME types prevent Android App Links from
matching [AppLinkUriRelativeFilterGroupError]
    &lt;data android:host='example.com' android:mimeType="application/json" android:pathPrefix='/gizmos' /&gt;
    ----------------------------------------------------------------------------------------------------
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Here is the source file referenced above:

`AndroidManifest.xml`:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~xml linenumbers
&lt;manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.helloworld" &gt;

    &lt;application&gt;
        &lt;activity android:name=".FullscreenActivity"&gt;

            &lt;intent-filter android:autoVerify="true"&gt; &lt;!-- Fine --&gt;
                &lt;action android:name="android.intent.action.VIEW" /&gt;
                &lt;category android:name="android.intent.category.DEFAULT" /&gt;
                &lt;category android:name="android.intent.category.BROWSABLE" /&gt;

                &lt;data android:scheme="http" /&gt;
                &lt;data android:scheme="https" /&gt;

                &lt;data android:host="example.com" /&gt;
                &lt;data android:pathPrefix="/gizmos" /&gt;
            &lt;/intent-filter&gt;

            &lt;intent-filter android:autoVerify="true"&gt; &lt;!-- Has MIME type in its own data tag--&gt;
                &lt;action android:name="android.intent.action.VIEW" /&gt;
                &lt;category android:name="android.intent.category.DEFAULT" /&gt;
                &lt;category android:name="android.intent.category.BROWSABLE" /&gt;

                &lt;data android:scheme="http" /&gt;
                &lt;data android:scheme="https" /&gt;

                &lt;data android:host="example.com" /&gt;
                &lt;data android:pathPrefix="/gizmos" /&gt;
                &lt;data android:mimeType="application/json" /&gt;
            &lt;/intent-filter&gt;

            &lt;intent-filter android:autoVerify="true"&gt; &lt;!-- Has MIME type in the same data tag as other content --&gt;
                &lt;action android:name="android.intent.action.VIEW" /&gt;
                &lt;category android:name="android.intent.category.DEFAULT" /&gt;
                &lt;category android:name="android.intent.category.BROWSABLE" /&gt;

                &lt;data android:scheme="http" /&gt;
                &lt;data android:scheme="https" /&gt;

                &lt;data android:host="example.com" android:mimeType="application/json" android:pathPrefix="/gizmos" /&gt;
            &lt;/intent-filter&gt;

            &lt;intent-filter android:autoVerify="true"&gt; &lt;!-- Has MIME type in the same data tag as other content; mix single/double quotes --&gt;
                &lt;action android:name="android.intent.action.VIEW" /&gt;
                &lt;category android:name="android.intent.category.DEFAULT" /&gt;
                &lt;category android:name="android.intent.category.BROWSABLE" /&gt;

                &lt;data android:scheme="http" /&gt;
                &lt;data android:scheme="https" /&gt;

                &lt;data android:host='example.com' android:mimeType="application/json" android:pathPrefix='/gizmos' /&gt;
            &lt;/intent-filter&gt;
        &lt;/activity&gt;
    &lt;/application&gt;
&lt;/manifest&gt;
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

You can also visit the
[source code](https://cs.android.com/android-studio/platform/tools/base/+/mirror-goog-studio-main:lint/libs/lint-tests/src/test/java/com/android/tools/lint/checks/AppLinksValidDetectorTest.kt)
for the unit tests for this check to see additional scenarios.

The above example was automatically extracted from the first unit test
found for this lint check, `AppLinksValidDetector.testAutoVerify_extraAttribute_mimeType`.
To report a problem with this extracted sample, visit
https://issuetracker.google.com/issues/new?component=192708.

(##) Suppressing

You can suppress false positives using one of the following mechanisms:

* Adding the suppression attribute
  `tools:ignore="AppLinkUriRelativeFilterGroupError"` on the
  problematic XML element (or one of its enclosing elements). You may
  also need to add the following namespace declaration on the root
  element in the XML file if it's not already there:
  `xmlns:tools="http://schemas.android.com/tools"`.

  ```xml
  &lt;?xml version="1.0" encoding="UTF-8"?&gt;
  &lt;manifest xmlns:tools="http://schemas.android.com/tools"&gt;
      ...
      &lt;activity tools:ignore="AppLinkUriRelativeFilterGroupError" .../&gt;
    ...
  &lt;/manifest&gt;
  ```

* Using a special `lint.xml` file in the source tree which turns off
  the check in that folder and any sub folder. A simple file might look
  like this:
  ```xml
  &lt;?xml version="1.0" encoding="UTF-8"?&gt;
  &lt;lint&gt;
      &lt;issue id="AppLinkUriRelativeFilterGroupError" severity="ignore" /&gt;
  &lt;/lint&gt;
  ```
  Instead of `ignore` you can also change the severity here, for
  example from `error` to `warning`. You can find additional
  documentation on how to filter issues by path, regular expression and
  so on
  [here](https://googlesamples.github.io/android-custom-lint-rules/usage/lintxml.md.html).

* In Gradle projects, using the DSL syntax to configure lint. For
  example, you can use something like
  ```gradle
  lintOptions {
      disable 'AppLinkUriRelativeFilterGroupError'
  }
  ```
  In Android projects this should be nested inside an `android { }`
  block.

* For manual invocations of `lint`, using the `--ignore` flag:
  ```
  $ lint --ignore AppLinkUriRelativeFilterGroupError ...`
  ```

* Last, but not least, using baselines, as discussed
  [here](https://googlesamples.github.io/android-custom-lint-rules/usage/baselines.md.html).

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